Trackball device for a video game



FIG. 1 is a front elevational view of a trackball device for a video game;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a top side perspective view.

The broken line showing an electrical cord is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a trackball device for a video game, as shown and described. 